Combined cutter and mixer.



C. S-.` HARDY.

COMBINED GUTTER AND MIXER.

APPLIoATIoN Mmm Nov. 21. 1911.

1,022,3 1 5. Patented Apr. 2, 1912.

3 SHEETS-SHEET 1.

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'0. S. HARDY. COMBINED GUTTER AND MIXER.

APPLICATION FILED NOV.21. 1911.

PatentedrApr. 2, 1912.

a SHBBTS-SHEET 2.

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APPLICATION ILED NOV. 21. 1911.

Patented Apr. 2, 1912.

y 3 SHEETS-SHEET 3.

W/T/VESSES %@M% l STATES PATENT OFFICE.

"je vCHARLES s. HARDY, or AN DIEGO, cAmronNIA.

The usual method of making these compounds'is to place cotton seed oil and beef ,tallo'wI in ai receptacle, to heat these two substances and to'blend them by means of paddles or agitators. The mixture thus formed is run` over a roll through which a freezing brine ispassing, causing the mixed product tolfbe hardened, and as fast as it becomes hardit is scraped from/the roll by a knife. :It is then passed through strainers before being packed; It is found in practice at times `that the stearin ot the tallow is apt to ha'rden in lumps which will clog up the strainer-vs, if the latter are too tine. Ordi narilythe st-rainers are of such size as to permit pieces thc'size` of shot to pass through.

`Anobject of my invention is to provide device by means ot' which a thick substance sueh as beef tallow can be mixed with agthin substance such as `cotton seed oil to makeja homogeneous product, 1'. e.. to cut upf,thethicker-substance into such small particles l,that the resulting product will be smoothand homogeneous instead of consistof lumps of one substance mixed with the thinner liquid of the other substance. p 4A further object ot' my `invention is to provide p a device for accomplishingr the above named object, which will do away with the necessity of the intermediate operation of straining. the product delivered vby my device being tiner than that obtained ,byV subsequent straining in the ordinary Way. y

Other objects and advantages will appear in the following specification and the novel `features of the invention will be particularly pointedl out in the appended claims.

My invention is illustrated in the aecompanying drawings Forming part ot this applicatiou in which similar refert-nce characters indicate like parts in the several views, and in whichH Specification of Letters Patent.

.Application filed November 21, 1911.

i i i COMBINED CUTTER AND MIXER.

Patented Apr. 2, 1912.

Serial lo. 661,506.

Figure l is a horizontal section through the device, Fig. 2 is a section along the line 2L-2 of Fig. 1 looking in the direction of the arrows. Fig. 3 is a section along the line 3 3 of Fig. l, looking in the direction of the arrows. Fig. 4 is a sectional view through one side otthe laterally extending arms or sectional view of the second coperating set ol knives, Fig. 6 is a horizontal sectional view oi a modified t'orm of the device, Fig. 7 is a sectional view on the line 7-7 of Fig. 6, Fig. 8 is a sectional view on the line 8 8 of F ig. (l, and Fig. S) is an elevational view showing the means of rotating the two shafts.

Referring now particularly to Fig. 1, I have shown therein a casing or receptacle composed ot' the two sections 1 and 2 respectively, these sections being secured together by bolts 3. The section l is provided With an integral hub member fl arranged to receive a shaft 5, while the casing section 2. is provided with an integral hub member 6 arranged to receive a shaft 7. The hub members 1i and 6 are Iprovided with the respective stuffing boxes 4x and t3* and with the pulleys fly and GY respectively. The shaft 4 has a longitudinal passage 4 and a lateral conduit 4W extending therefrom for oiling the bearing. The shaft G has a similar longitudinal passage 6Z with a conduit 6W for oiling its bearings. These two shafts have their inner ends in Contact as shown at 8, end of one shaft being hemispherical to ft in the hemispherieal recess of the other shaft. The casing sect-ion l is provided' with a partition 9 like that shown in Fig. 2. this partition having the long radial openings 9X, shorter radial openings 9V and the circular openings 91'. The casing section Q is provided with a partition l like thaty shown in Fig. 3 having the cylindrical pertorations lO. Between the partitions 9 and i0 are disposed the radially extending arms '11 having laterally extending arms or knives llf. The arms 11 are secured to the curved on arcs concentric with the axis of knives inthe main receptacle, Fig. -is ashaft 5 and one end of the arms 11 lies close driven in the opposite direction by means of f. are sharp and are especially designed for 'cutting action, and 1t 1s this construction to projecting knives of the opposite set. This the shaft. The knives 12a are similarly constructed as shown in Fig. 5, but are so spaced that they will move between `the arms 11a. The edges of the arms or knives 11a and 12a insures the cutting action. The intake pipe is shown at 18 having communication with the interior of the casing section 1, while the outlet pipe 14 leads vfrom the interior of the casing section 2.

From the foregoing description of 'the various parts of the device the operation thereof may be readily understood.

`The shaft 5 is driven4v in one direction by means of the belt 5a, while the shaft 7 is the belt 7B, thus turning` the set of knives 11-11a in one direction and 12-12a in the other direction. The'mixture of the thin and thick substances, such as cotton seed oil andY beef tallow is forced by means of a pump (not shown) through the inlet pipe 13 into the space in the interior of the casing member 1 and passes through the openings 9X, 9y and 9z in the partition 9, into the space between the partitions 9 and 10 which constitutes the cutting and mixing receptacle. As the material passes through the openings in the partition 9 it is met by the rapidly revolving knives or arms 11, and is cut up. As it is forced along in the path of the rap idly revolving knives 11a and 12a it is again cut up and the mixture is intimately agitated, while just before passing through the openings 10x in the partition 10 it4 is once more subjected to the cutting action of thef arms 12. At this stage the product instead of being lumpy is very finely divided, intimately mixed, and homogeneous. The prode uct is then forced out of the space 16 and into the outlet pipe 14 from whence it may be delivered to the packages or other receptacles.

in Figs. 6, 7 and 8, I have shown a modi- Ytied form in which a shaft 5 is provided with radial arms 11 bearing llaterally extending arms 11a having inwardly extending knives 11". A second shaft 7 is provided with radially extending knives 12a which fit` between the knives 11b. These two sets of knives are designed to be revolved in opposite directions and the charge is designed to be forced through the pipe 13', through the partitions 9 and 10', and out through the outlet pipe 14 in the manner described.

In Fig. 9 I have shown a modified means for rotating the two shafts in' opposite directions. In this figure the base 17 is provided with bearings 18 for a shaft- 19. The shaft is run bya motor 20 and is provided at one end with a gear 21 arranged to engage an internal gear 22 on the shaft 5. The shaft 19 bears a similar gear 23 arranged toengage a large gear 24 on the shaft 7.

It will be seen that by this arrangement the shafts 5 and 7 are driven in opposite di- 'rections Ivam aware that devices have been made in which the charge is passed into a receptacle provided with rotating arms or beaters, but 'I desire to call attention to the fact that the arms which serve the purpose of agitating or mixing the charge are set so closely together that they shear or cut the charge continuously during this passage through the device as well as mixing it intimately, thus resulting in a smooth homogeneous product, which cannot be obtained by mere beating or agitationI` I claim .1. In a combined cutter and mixer, an

outer casing, a pair of perforatedpartitions within said casing, an inlet pipe between one of said partitions and the end of said casing, an outlet pipe betweenthe other partition and the opposite end of said casing, a plurality of sets of knives disposed between said partitions, the individual knives of one set being spaced apart to permit the passage of the knives of the other set, and means for revolving the two sets of knives in vopposite directions..l

2. In a combined cutter and mixer, an outer casing, a pair of perforated partitions within said casing, an inlet pipe between one of said partitions and the end of said casing, an outlet pipe between the other partition and the opposite end of said casing, a plurality of sets of radially extending knives disposed between said partition, one of said sets of knives being close to one partition, the other set being close to the other partition, and a plurality of sets of intermediate knives, one set of radially extending knives and intermediate knives being arranged to revolve in one direction, and the other set of radial knives and intermediate knives being arranged to revolve in the opposite direction.

3. In a combined cutter and mixer, an outer casing, a pair of perforated partitions within said casing, the perforations in one` of said partitions being larger than those in the other partition, an inlet-pipe between one of said partitions and the end of said casing, an outlet pipe between the other partition and the opposite end of said cas-4 ing, a plurality of sets of radially extending knives disposed between said partition, one of said sets of knives being close to onepartition, the other set being close to the other partition, and a pluralit of sets of intermediate knives, the indivldual knives of one of said intermediate sets of knives alternat- -ing with the individual knives of the other set, one set of intermediate knives just clearing the other, one set of radially extending knives bein arranged to revolve in one direction, an the other set of radial knives and intermediate knives being arranged to revolve in the opposite direction.

L Ina combined cutter and mixer, an outer easing, a perforated partition disposed Within said casing near one end thereof, an inlet pipe between said partition and the end of the casing, a second perforated partition disposed W1thin said casing near the opposite end, the perforations in said second partition being smaller than those in the first named partition, an outlet pipe between said second named partition and the end of the casing, a pair of shafts carried by said casing, the end of one-shaft abutting the end of the other shaft, a series of knives carried by one of said shafts, certain of said knives being spaced apart, a second series of knives carried by the other shaft, said second series of knives being spaced apart to pass between the first named knives, one set of knives just clearing the other set, and the knives being arranged to just clear the partitions, and means for revolving the two shafts in opposite directions.

CHARLES S. HARDY.

Witnesses: i.

EDWIN A. THILL, En. S. GIBSON. 

